Objective:To explore the genotypes and frequency distribution of thalassemia in Lingui District,Guilin City,and provide reference for the prevention and control of thalassemia in this area. Methods:The results of genetic testing for thalassemia in 1501 suspected cases at the Second Affiliated Hospital of Guilin Medical University were analyzed retrospectively. The deletional mutations of α-thalassemia were detected by gap-PCR,the non-deletional mutations of α-thalassemia and β-thalassemia mutations were detected by PCR-reverse dot blot (PCR-RDB). Results:In 1501 samples,a total of 678 cases of thalassemia carriers were detected,with a detection rate of 45.17％. Among them,379 cases were α-thalassemia (including deletional α-thalassemia and non-deletional α-thalassemia),with a detection rate of 25.25％,the most common genotype was--SEA/αα (227 cases,15.12％),followed by-α3.7/αα (53 cases,3.53％). 270 cases of β-thalassemia were detected,with a detction rate of 17.99％,and βCD41-42/βN (144 cases,9.59％) was the main genotypes,followed by βCD17/βN (66 cases,4.40％) . In addition,there were 29 cases of αβ compound thalassemia,accounting for 1.93％,and the most common genotype was--SEA/αα complex βCD41-42/βN (5 cases,0.33％). Conclusion:Lingui District in Guilin City is a high-incidence area of thalassemia,and the genotypes of carriers are complex and diverse,with genetic heterogeneity. The results of this study provide a scientific basis for genetic counseling and prenatal diagnosis in this area.

Golgi protein 73 (GP73) is a transmembrane protein on the Golgi apparatus and can be cut and released into the blood. In recent years, an increasing number of clinical studies have shown that the elevated serum GP73 level is closely related to liver diseases. And thus GP73 is expected to be used as a new serum marker for assessing progress of chronic liver diseases. Herein, the clinical application of serum GP73 in chronic hepatitis, liver fibrosis, liver cirrhosis and hepatocellular carcinoma with different etiologies was reviewed based on available literatures; and a research outlook in this field is made.
Biomarkers ; Carcinoma, Hepatocellular ; Golgi Apparatus ; Humans ; Liver Cirrhosis ; Liver Neoplasms

In this study, a research strategy integrating network pharmacology analysis and animal experimental validation was applied to explore the molecular mechanism of Chuanxiong Qingnao Granules (CXQN) in improving migraine headache (MH). All animal experiments were followed the regulation of the Laboratory Animal Ethics Committee of the China Academy of Chinese Medical Sciences. Based on the network pharmacology analysis, the 27 active ingredients and their corresponding 940 targets were obtained, and 99 common targets of CXQN in the treatment of MH were obtained by intersection, and tumor necrosis factor-α (TNF-α), interleukin (IL)-6, vascular endothelial growth factor A (VEGFA), IL-1β, brain-derived neurotrophic factor (BDNF) were screened out as hub targets. Enrichment analysis showed that the targets of CXQN in the treatment of MH were mainly involved in cyclic adenosine monophosphate (cAMP), hypoxia inducible factor-1 (HIF-1), phosphoinositide 3-kinase-protein kinase B (PI3K-Akt) signaling pathways. In addition, the experimental verification in the MH rat induced by nitroglycerin showed that the CXQN administrated groups could significantly improve the behavioral symptoms and regulate the level of vasoactive substances, and reduce the expression of TNF-α, IL-6, VEGFA, IL-1β, and BDNF at gene and protein levels. This study revealed the multi-component, multi-target, and multi-pathway characteristics of CXQN in the treatment of MH, and elucidated the potential mechanism of CXQN in the treatment of MH, laying a theoretical foundation and scientific basis for its clinical application in the treatment of MH diseases.

Most bacterial cell surface glycans are structurally unique, and have been considered as ideal target molecules for the developments of detection and diagnosis techniques, as well as vaccines. Chemical synthesis has been a promising approach to prepare well-defined oligosaccharides, facilitating the structure-activity relationship exploration and biomedical applications of bacterial glycans. L-Galactosaminuronic acid is a rare sugar that has been only found in cell surface glycans of gram-negative bacteria. Here, an orthogonally protected L-galactosaminuronic acid building block was designed and chemically synthesized. A synthetic strategy based on glycal addition and TEMPO/BAIB-mediated C6 oxidation served well for the transformation of commercial L-galactose to the corresponding L-galactosaminuronic acid. Notably, the C6 oxidation of the allyl glycoside was more efficient than that of the selenoglycoside. In addition, a balance between the formation of allyl glycoside and the recovery of selenoglycoside was essential to improve efficiency of the NIS/TfOH-catalyzed allylation. This synthetically useful L-galactosaminuronic acid building block will provide a basis for the syntheses of complex bacterial glycans.
Carbohydrates ; Glycosides ; Oligosaccharides ; Oxidation-Reduction ; Polysaccharides/chemistry*

CREB-Binding Protein/genetics* ; Humans ; Lymphangiectasis, Intestinal ; Rubinstein-Taybi Syndrome/genetics*

Objective: : Shunt infection is a common complication while treating hydrocephalus. The antibiotic-impregnated shunt catheter (AISC) was designed to reduce shunt infection rate. A meta-analysis was conducted to study the effectiveness of AISCs in reduction of shunt infection in terms of age, follow-up time and high-risk patient population. Methods: : This study reviewed literature from three databases including PubMed, EMBASE, and Cochrane Library (from 2000 to March 2019). Clinical studies from controlled trials for shunt operation were included in this analysis. A subgroup analysis was performed based on the patient’s age, follow-up time and high-risk population. The fixed effect in RevMan 5.3 software (Cochrane Collaboration) was used for this meta-analysis. Results: : This study included 19 controlled clinical trials including 10105 operations. The analysis demonstrated that AISC could reduce the infection rate in shunt surgery compared to standard shunt catheter (non-AISC) from 8.13% to 4.09% (odds ratio [OR], 0.48; 95% confidence interval [CI], 0.40–0.58; p=0.01; I2=46%). Subgroup analysis of different age groups showed that AISC had significant antimicrobial effects in all three groups (adult, infant, and adolescent). Follow-up time analysis showed that AISC was effective in preventing early shunt infections (within 6 months after implant). AISC is more effective in high-risk population (OR, 0.24; 95% CI, 0.14–0.40; p=0.60; I2=0%) than in general patient population. Conclusion : The results of meta-analysis indicated that AISC is an effective method for reducing shunt infection. We recommend that AISC should be considered for use in infants and high-risk groups. For adult patients, the choice for AISC could be determined based on the treatment cost.

OBJECTIVE: To quantitatively study the biomechanical parameters of Bachuorounian manipulation in the treatment of humeral epicondylitis, and discuss the effects of individual characteristics on the biomechanical parameters were discussed. METHODS: From July 2019 to February 2020, 40 patients with external humeral epicondylitis were selected, including 18 males and 22 females, ranging in age from 20 to 50 years old, with an average of (34.37±8.41) years old;and the course of disease ranged from 1 to 11 months, with a mean of (6.05±2.71) months. The biomechanical parameters of the elbow joint of the affected side were measured by using the biomechanical sensor. At thesame time, the individual characteristic parameters of patients were collected to analyze the influence of different individual characteristics of patients on biomechanical parameters. RESULTS: The results of mechanical analysis in each stage of the bachuorounian manipulation were as follows:the rolling back rotation force was (31.17±2.99) N;the buckling bending drawing force was (44.99±2.38) N;the rolling pre rotation force was (31.03±2.75) N;and stretching drawing force was (48.75±2.09) N. The correlation analysis between the parameters showed that there was a significant positive correlation between the buckling bending drawing force and the stretching drawing force parameters, and a significant positive correlation between the rolling force back-rotation force and the rolling pre-rotation force parameters. The multivariate linear regression analysis on the parameters of influencing factors and manipulative biomechanics showed that there was a significant correlation between body weight and rolling back-rotation force, significant correlation between elbow tenderness and the buckling bending drawing force, and significant correlation between disease duration and the stretching drawing force. CONCLUSION The bachuorounian manipulation of humeral epicondylitis has a certain range of operating force. Manipulation of each stage has a correlation and systematic. The patient's weight, elbow tenderness and disease course are important factors affecting the bachuorounian manipulation.
Biomechanical Phenomena ; Elbow ; Elbow Joint ; Female ; Humans ; Humerus ; Infant ; Male ; Tennis Elbow

Objective: To construct a model of professional competency standard for school health education teachers in China, then to provide a framework for the professional development of health education teachers at primary and secondary schools. Methods: Seventy-five indicators of professional competency of school health education teacher were identified through job task analysis, qualitative interview, expert consultation. A total of 282 school health administrators/researchers, school principals, health education teachers in Shanghai, and the first undergraduate students of health education progame in China were surveyed. Items analysis verified appropriateness, and exploratory factor analysis determined construct validity of the competency standards. Results: The framework of competency standards consists of four major areas (general literacy, school health services, school health education, school health management), nine categories, and 70 competence standards. Nine categories include professional ethics, general literacy as teacher, assist to deal with emergency/accident health events and common diseases situation in school, assist vaccination and mental health assessment, monitoring/communication the health situation of students, knowledge of health education and teaching skills, implement health education activities effectively and continuously, deal with infectious diseases and environment/ water/food safety in school, monitor conditions of the school health and optimize health strategy continuously. Cronbach’s Alpha coefficient of total competence standards was 0.98, and those of the sub-dimensions ranged from 0.86 to 0.96 ; the split-half reliability of total system was 0.93 with sub-dimensions coefficient ranging from 0.83 to 0.95. Conclusion The model of competency standard developed in this study show good validity and reliability, which can provide theoretical framework for the training, using and evaluation of school health education teachers with the characteristics of combinating medicine and teaching.

Five pairs of optically pure meroterpenoid enantiomers (1a/1b-5a/5b) and two known compounds (6 and 7) were isolated from Rhododendron fastigiatum. Compounds 1a/1b-5a/5b were resolved from naturally scalemic mixtures by chiral HPLC. Their structures were elucidated by spectroscopic methods, X-ray crystallographic experiments, and ECD analyses. Compounds 1a/1b, 2a/2b, 3b, 4a/4b, and 5a/5b were new meroterpenoids with different polycyclic systems. Two enantiomeric pairs (2a/2b and 3a/3b), 6, and 7 exhibited inhibitory effects on protein tyrosine phosphatase 1B (PTP1B) in vitro.